#402 Color dendrogram labels

Using graph #400 and #401 you should be able to build a dendrogram and customise most of its features. But now, you probably want to compare the structure you get with your expectations.

In this example we will consider the mtcars dataset. It is a numeric matrix that gives the feature of several cars. We can cluster these cars, represent their structure in a group, and color the car names following their cylinder (the ‘cyl’ column). Thus, we will know if the cylinder is responsible of this structure!